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Big Agnes SLX Tent Floor Pad Review (Unique & Insulated)

Last Modified: 12/04/2023

This Big Agnes SLX Tent Floor Pad review is about a unique tapered inflatable double sleeping pad designed for the corresponding floors of backpacking tents. This is an ultralight 3-season option for two people.

Big Agnes SLX Tent Floor Pad.
Big Agnes SLX Tent Floor Pad.

Key features & benefits

  • Double size sleeping pad.
  • Tapered dimensions.
  • Inflatable design.
  • Lightly insulated.
  • Nicely packable.
  • Ultralight.

What this Big Agnes SLX Tent Floor Pad is about

Perhaps you have been in the situation to use a two-person tent which has a tapered floor size. There are many of this type here in the site, like the Big Agnes Tiger Wall UL Backpacking Tent, Big Agnes C Bar 2 Backpacking Tent, Sierra Designs Sweet Suite 2 Tent, and many other tents. They do this to save weight so you have such a shape in backpacking tents.

So those are not rectangular structures, they are trapezoidal by shape, and when you put a rectangular pad, there are sections on the wider side (headend) of the tent that are not covered by the pad. Such spaces are not wasted though, you can always keep some of your gear there. But in any case, Big Agnes has designed this pad to follow the shape of the floor in such tents.

I guess this is why they use the word Floor Pad, the meaning is that it will cover the complete floor as you can see in the example of the tent below. This will give more sleeping surface in the case of two users.

A tapered tent floor fitted with the tapered Big Agnes pad.
A tapered tent floor fitted with the tapered Big Agnes pad.

So this is 78 inches long pad, and the width at the head and feet size is 50 and 40 inches, respectively. This makes it suitable for the tents mentioned above, and for many more of course because these are typical dimensions of backpacking tents. The pad offers 3.5 inches (8.9 cm) space between you and the ground, and this should be good enough even if you are a side sleeper.

The particular feature you see in the pictures is its quilted surface and offset I-Beam construction which reduces weight and provides consistent stability and comfort. So this is a surface that is more stable than the traditional design with tubes. The outer chambers are made larger to keep you comfortably cradled in the middle of the pad.

The material

This is nylon double ripstop, exceptionally strong for its weight, it improves tear strength and durability by 25%. They use an Aviation grade TPU lamination technology for the best possible durability.

The pad is with an internal microbial treatment which is supposed to prevent microorganism growth. They would develop due to moisture which may develop in the pad. Inflation is through a one-way valve while keeping the deflation valve closed.


Who is it for

Size-wise, as you have seen from the text above, the pad is designed to fit backpacking and hiking tents. The dimensions 78 x 50/40 inches (198 x 127/102 cm) are such that it is suitable for most users and the width is optimal for a 2-person tent. The thickness of 3.5 inches (8.9 cm) is such that it is good enough even as a standard camping pad.

Weight-wise, this pad is in the group of ultralight double sleeping pads. This is normal in view of its basic purpose for backpacking. You will see how it compares with some other top-notch pads on the market. The packed size is also excellent for a double bag.

Seasons-wise, the pad comes with a built-in advanced heat reflective technology and with WRM HL durable, high-loft synthetic insulation. The temperature rating is 32 F (0 C) and this is around 2.6 R-value. So this is a pad for 3-season use.

Please see a bit more in this short video:


Specifications

  • Type: double-size inflatable pad.
  • Weight: 42 oz (1.19 kg).
  • Dimensions: 78 x 50/40 in (198 x 127/102 cm).
  • Thickness: 3.5 in (8.9 cm).
  • Packed size (L x D): 11 x 6 in (28 x 15 cm).
  • R-value: 2.6.

Big Agnes SLX Tent Floor Pad vs Competitors

To realize how lightweight this pad is I have decided to show it side by side with the Klymit Double V which is in the same weight range, and Kelty Tru.Comfort Camp Bed. The latter is thicker but it is three times heavier and it is without insulation.

The Klymit pad is a bit lighter but it is much shorter. Of course, both of them are standard rectangular pads. But the Big Agnes pad is far more expensive than the other two. Please follow the links to read more.


Features

COMPARE PACKAGE FEATURES

Weight, kg

Size, in (cm)

R-value

Thickness, in (cm)

Fabric

Price

Big Agnes SLX
Tent Floor Pad

$99

Payable Every Month

1.19

78 x 50/40
(198 x 127/102)

2.6

4.75 (12)

double ripstop nylon

$$$

check on amazon

Klymit
Double V

$399

Payable Every Year

1.1

74 x 47
(188 x 119)

1.6

3 (7.6)

75D poly

$

Read my review

Kelty Tru.Comfort
Double

$399

Payable Every Year

3.5

78 x 57
(198 x 145)

NA

4.75 (12)

75D poly

$$

Read my review


Final thoughts, rating, pros & cons

So you have seen the unique features of this Big Agnes SLX Tent Floor Pad. I do not remember any other sleeping pad with such a tapered shape.

One interesting question would be – is this really a better option than two single pads. I would say it is definitely more comfortable if you are going with your partner. Regarding the weight, this depends on what you choose to compare with.

As an example, if you take two Therm-a-Rest Trail King SV Sleeping Pads, the combined weight is much bigger, around 1.63 kg for the size R. The combined price is similar to one Big Agnes SLX Pad.

But take two Klymit V Ultralite SL Sleeping Pads, the combined weight is only 674 grams, and the combined price is currently below $100. As usual, it is hard to match the value/money combination which you have with Klymit pads.

Please see how I rate it for the usual set of parameters used for all the pads here in the site:

Big Agnes SLX Tent Floor Pad 50X78 Tapered

Big Agnes SLX Tent Floor Pad 50X78 Tapered
9

Weight

9.4/10

Comfort & features

9.4/10

R-value

7.5/10

Packed size

9.6/10

Pros

  • Very stable for sleeping.
  • Unique design.
  • Insulated.
  • Great packed size.
  • Great weight.
  • Exceptionally comfortable.

Cons

  • Very expensive.
Check on Amazon
Check at REI

I have added this pad to my list with best inflatable sleeping pads. If you need more options to check, please visit our page with sleeping pads.

Note that this is not a sponsored text and I am not paid by the brand. What do you think about this new pad from Big Agnes? Do share your thoughts here, there is a comment box below.

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Mountains for Everybody site is reader-supported. This means that some of the links in the text are affiliate links, and when you buy products through our links we may earn some small commission to keep running the site. Filed Under: Sleeping Pads Tagged With: big agnes sleeping pads

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My photo on the summit of Jalovec.Hi everybody and welcome to my site which I nurture with love and passion. Here I describe my own climbs and give reviews of equipment. I hope you will enjoy it. More about the site and about me here.

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